A Prototype of Mathematical Treatment of Pen Pressure Data for Signature Verification

A prototype using simple mathematical treatment of the pen pressure data recorded by a digital pen movement recording device was derived. In this study, a total of 48 sets of signature and initial specimens were collected. Pearson's correlation coefficient was used to compare the data of the pen pressure patterns. From the 820 pair comparisons of the 48 sets of genuine signatures, a high degree of matching was found in which 95.4% (782 pairs) and 80% (656 pairs) had rPA > 0.7 and rPA > 0.8, respectively. In the comparison of the 23 forged signatures with their corresponding control signatures, 20 of them (89.2% of pairs) had rPA values < 0.6, showing a lower degree of matching when compared with the results of the genuine signatures. The prototype could be used as a complementary technique to improve the objectivity of signature examination and also has a good potential to be developed as a tool for automated signature identification.     

Keeping Creativity Downtown: Policy Learning from San Francisco,Seattle, and Vancouver for Municipal Cultural Planning in Toronto

I examine Toronto's interest in the policy learning process regarding possible solutions to development pressure downtown though understanding policies from San Francisco, Seattle, and Vancouver. Grounded by the analysis of creative city interventions and incorporating a theoretical framework of policy adaptation, the investigation is informed by interviews with fifty-one multi-sector stakeholders, historical and archival materials, and policy documents. Return to urban living and the creative cities movement challenge city centers in preserving creative and cultural businesses and organizations. Emergent data themes include: (1) research and strategic planning; (2) stakeholder partnerships; and (3) economic development incorporating economic benefit and social good.     

民族地区基层民警思想状况调查研究

调查显示,民族地区大部分基层民警思想政治觉悟较高,但部分民警的职业认同感不强,工作压力大,有职业倦怠情绪,主要是工作任务重、执法环境严峻、工资福利不理想、业务能力有限等因素造成的。必须做好基层民警的思想政治工作,完善激励机制激发民警的工作积极性,健全民警心理压力疏导机制,正确处理公安机关与大众传媒的关系,缓解民警的思想压力,提高工作效率。     

公安边防部队官兵压力分析与应对

公安边防部队作为担负出入境边防检查、边境管理、打击偷渡、走私、贩毒贩枪等暴力犯罪的特殊武装力量,工作具有点多、线长、面广的特点。与社会其他成员相比,官兵受到的压力更大,压力源更为广泛。因此,相关部门应采取切实措施,关注官兵心理健康,以有效减少其身心压力。     

LC-MS／MS测定尿液中可卡因及其代谢物苯甲酰爱康宁

目的建立尿液中可卡因(cocaine,COC)及其代谢物苯甲酰爱康宁(benzoylecgonine,BZE)的液相色谱-串联质谱分析方法。方法尿液经固相萃取后,用AllurePFP丙基柱分离,以V(甲醇):V(20mmol/L乙酸胺和0.1%甲酸的缓冲溶液)=80∶20为流动相,采用二级质谱多反应监测模式检测COC和BZE。按10mg/kg的剂量对豚鼠腹腔注射可卡因,给药后收集7d尿液。结果尿液中COC和BZE在2.0～100ng/mL质量浓度范围内线性关系良好(r=0.9995),最低检测限(LOD)为0.5ng/mL;回收率大于90%;日内和日间精密度均小于6%;豚鼠尿液中主要检测目标物是BZE,且BZE检测时限也较COC长。结论所建方法灵敏度高,选择性好,适用于尿液中可卡因和苯甲酰爱康宁的检测。     

当前青年面临的压力及其应对方式

当前中国青年面临的压力主要有 :价值冲突压力、选择压力、就业和工作压力、学业压力等、婚恋压力以及人际关系压力等。在各种压力下 ,青年人的身心健康状况受到了不同程度的影响。青年人应采取适当的应对方式来平衡自己的心态 ,以应付所面临的各种压力     

燃气加气站地下储罐的置换和试压方法的探讨

介绍了汽车用燃气加气站地下储罐的置换和试压方法 ,对地下储罐系统试压方法的经济性进行了分析     

警察亚文化下的异态现象研究——以亚文化的负功能为视角

在社会核心价值理念的背景下,警察作为社会的一个重要组成部分,其文化不仅受到社会主流文化的影响,而且拥有符合其自身价值追求的亚文化,警察亚文化在警察工作和生活中发挥着极其重要的作用。与此同时,由于亚文化负功能的影响,警察组织中也普遍存在着偏离主流文化的异态现象。随着法治建设的深入,我们势必通过对警察亚文化所引起的异态现象...     

高层建筑外墙清洗方法及清洗机械的研究

阐述了清洗城市建筑、尤其是高层建筑外墙的目的和意义 ,对现有的高层建筑外墙清洗方法进行了分析 ,并介绍了一种提高清洗效率的清洗机械及计算方法。